Results 101 to 110 of about 9,921 (228)

Thermal efficiency investigation for organic Rankine cycle and trilateral flash cycle using hydrofluoroether working fluids

open access: yesResults in Engineering
The thermal efficiency of the organic Rankine cycle (ORC) is higher than the trilateral flash cycle (TFC) using normal dry working fluids. On the contrary, the thermal efficiency of TFC outperforms the thermal efficiency of ORC by using super dry working
Aram M. Ahmed
doaj   +1 more source

Exergy analysis and optimisation of waste heat recovery systems for cement plants

open access: yesInternational Journal of Sustainable Energy, 2018
In the last decades, heat recovery systems have received much attention due to the increase in fuel cost and the increase in environmental issues. In this study, different heat recovery systems for a cement plant are compared in terms of electricity ...
Amin Mohammadi   +2 more
doaj   +1 more source

A comparison of heat transfer correlations applied to an Organic Rankine Cycle

open access: yesEngineering Science and Technology, an International Journal, 2018
Organic Rankine Cycles (ORC) are often based on the utilization of special dry or isentropic fluids, namely substances with a vertical or positive slope of the saturated steam curve.Several heat transfer correlations for boiling process are available in ...
Francesco Calise   +3 more
doaj   +1 more source

Experimental study on transcritical Rankine cycle (TRC) using CO2/R134a mixtures with various composition ratios for waste heat recovery from diesel engines [PDF]

open access: yes, 2020
A carbon dioxide (CO2) based mixture was investigated as a promising solution to improve system performance and expand the condensation temperature range of a CO2 transcritical Rankine cycle (C-TRC).
Feng, W   +5 more
core   +1 more source

Steam generation unit in a simple version of biomass based small cogeneration unit

open access: yesMATEC Web of Conferences, 2014
The organic Rankine cycle (ORC) is a very promising process for the conversion of low or medium temperature heat to electricity in small and micro scale biomass powered systems.
Sornek Krzysztof   +4 more
doaj   +1 more source

A Combined Organic Rankine Cycle-Heat Pump System for Domestic Hot Water Application [PDF]

open access: yes, 2016
This paper investigates a novel system to improve the efficiency of using natural gas for domestic heating. The exhaust from a gas burner powers a small-scale Organic Rankine Cycle (ORC) system using hexane as the working fluid, which is used to directly
Al-Tameemi, Mohammed   +2 more
core   +1 more source

Parametric optimization and heat transfer analysis of a dual loop ORC (organic Rankine cycle) system for CNG engine waste heat recovery [PDF]

open access: yes, 2017
In this study, a dual loop ORC (organic Rankine cycle) system is adopted to recover exhaust energy, waste heat from the coolant system, and intercooler heat rejection of a six-cylinder CNG (compressed natural gas) engine. The thermodynamic, heat transfer,
Liu, Hongda   +6 more
core   +1 more source

Reversible Heat Pump–Organic Rankine Cycle Systems for the Storage of Renewable Electricity

open access: yesEnergies, 2018
Storage of electricity from fluctuating renewable energy sources has become one of the predominant challenges in future energy systems. A novel system comprises the combination of a heat pump and an Organic Rankine Cycle (ORC) with a simple hot water ...
Sebastian Staub   +13 more
doaj   +1 more source

Multi-objective optimization of organic Rankine cycle power systems for waste heat recovery on heavy-duty vehicles [PDF]

open access: yes, 2018
The use of Organic Rankine Cycle (ORC) power systems for waste heat recovery on internal combustion engines of heavy-duty vehicles can help to mitigate the greenhouse gasses and reduce the fuel consumption of the truck.
Imran, Muhammad   +3 more
core   +1 more source

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